Gday fine Commodore people. Installing heads tomorrow on the ecotec VT and getting differing opinions on torque specs. The manual I downloaded says, in sequence: Stage 1. 34Nm. Stage 2. 90 degrees not exceeding 90Nm. Stage 3. A further 90 degrees. Problem is everywhere else I've read says stage 3 is 90Nm not an extra 90 degrees. What's the go?